which download targets apt will try to acquire from this
source. If not specified, the default set is defined by the
<option>Acquire::IndexTargets</option> configuration scope.
+ Aditionally, specific targets can be enabled or disabled by
+ using the identifier as field name instead of using this
+ multivalue option.
</para></listitem>
+
+ <listitem><para><option>PDiffs</option> (<option>pdiffs</option>)
+ is a yes/no value which controls if APT should try to use PDiffs
+ to update old indexes instead of downloading the new indexes
+ entirely. The value of this option is ignored if the repository
+ doesn't announce the availability of PDiffs. Defaults to the
+ value of the option with the same name for a specific index file
+ defined in the <option>Acquire::IndexTargets</option> scope,
+ which itself default to the value of configuration option
+ <option>Acquire::PDiffs</option> which defaults to
+ <literal>yes</literal>.
+ </para></listitem>
+
+
</itemizedlist>
Further more, there are options which if set effect